content: /* ===========================================================
   * JFreeChart : a free chart library for the Java(tm) platform
   * ===========================================================
   *
   * (C) Copyright 2000-2013, by Object Refinery Limited and Contributors.
   *
   * Project Info:  http://www.jfree.org/jfreechart/index.html
   *
   * This library is free software; you can redistribute it and/or modify it
   * under the terms of the GNU Lesser General Public License as published by
   * the Free Software Foundation; either version 2.1 of the License, or
   * (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful, but
   * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
   * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
   * License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
   * USA.
   *
   * [Oracle and Java are registered trademarks of Oracle and/or its affiliates.
   * Other names may be trademarks of their respective owners.]
   *
   * --------------------------
   * LookupPaintScaleTests.java
   * --------------------------
   * (C) Copyright 2006-2013, by Object Refinery Limited and Contributors.
   *
   * Original Author:  David Gilbert (for Object Refinery Limited);
   * Contributor(s):   -;
   *
   * Changes
   * -------
   * 05-Jul-2006 : Version 1 (DG);
   * 31-Jan-2007 : Additional serialization tests (DG);
   * 07-Mar-2007 : Added new tests (DG);
   * 09-Mar-2007 : Check independence in testCloning() (DG);
   *
   */
  
  package org.jfree.chart.renderer;
  
  import org.junit.jupiter.api.Test;
  
  import java.awt.Color;
  import java.awt.GradientPaint;
  import java.io.ByteArrayInputStream;
  import java.io.ByteArrayOutputStream;
  import java.io.IOException;
  import java.io.ObjectInput;
  import java.io.ObjectInputStream;
  import java.io.ObjectOutput;
  import java.io.ObjectOutputStream;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertNotSame;
  import static org.junit.jupiter.api.Assertions.assertSame;
  
  /**
   * Tests for the {@link LookupPaintScale} class.
   */
  public class LookupPaintScaleTest  {
  
      /**
       * A test for the equals() method.
       */
      @Test
      public void testEquals() {
          LookupPaintScale g1 = new LookupPaintScale();
          LookupPaintScale g2 = new LookupPaintScale();
          assertEquals(g1, g2);
          assertEquals(g2, g1);
  
          g1 = new LookupPaintScale(1.0, 2.0, Color.RED);
          assertFalse(g1.equals(g2));
          g2 = new LookupPaintScale(1.0, 2.0, Color.RED);
          assertEquals(g1, g2);
  
          g1.add(1.5, new GradientPaint(1.0f, 2.0f, Color.RED, 3.0f, 4.0f,
                  Color.BLUE));
          assertFalse(g1.equals(g2));
          g2.add(1.5, new GradientPaint(1.0f, 2.0f, Color.RED, 3.0f, 4.0f,
                  Color.BLUE));
          assertEquals(g1, g2);
      }
  
      /**
       * Confirm that cloning works.
       */
      @Test
      public void testCloning() throws CloneNotSupportedException {
          LookupPaintScale g1 = new LookupPaintScale();
          LookupPaintScale g2 = (LookupPaintScale) g1.clone();
          assertNotSame(g1, g2);
          assertSame(g1.getClass(), g2.getClass());
          assertEquals(g1, g2);
  
          // check independence
          g1.add(0.5, Color.RED);
          assertFalse(g1.equals(g2));
          g2.add(0.5, Color.RED);
          assertEquals(g1, g2);
  
          // try with gradient paint
          g1 = new LookupPaintScale(1.0, 2.0, new GradientPaint(1.0f, 2.0f,
                  Color.RED, 3.0f, 4.0f, Color.green));
          g1.add(1.5, new GradientPaint(1.0f, 2.0f, Color.RED, 3.0f, 4.0f,
                  Color.BLUE));
          g2 = (LookupPaintScale) g1.clone();
  
          assertNotSame(g1, g2);
          assertSame(g1.getClass(), g2.getClass());
          assertEquals(g1, g2);
      }
  
      /**
       * Serialize an instance, restore it, and check for equality.
       */
      @Test
      public void testSerialization() throws IOException, ClassNotFoundException {
          LookupPaintScale g1 = new LookupPaintScale();
  
          ByteArrayOutputStream buffer = new ByteArrayOutputStream();
          ObjectOutput out = new ObjectOutputStream(buffer);
          out.writeObject(g1);
          out.close();
  
          ObjectInput in = new ObjectInputStream(
                      new ByteArrayInputStream(buffer.toByteArray()));
          LookupPaintScale g2 = (LookupPaintScale) in.readObject();
          in.close();
  
          assertEquals(g1, g2);
  
          g1 = new LookupPaintScale(1.0, 2.0, new GradientPaint(1.0f, 2.0f,
                  Color.RED, 3.0f, 4.0f, Color.yellow));
          g1.add(1.5, new GradientPaint(1.1f, 2.2f, Color.RED, 3.3f, 4.4f,
                  Color.BLUE));
          buffer = new ByteArrayOutputStream();
          out = new ObjectOutputStream(buffer);
          out.writeObject(g1);
          out.close();
  
          in = new ObjectInputStream(
                      new ByteArrayInputStream(buffer.toByteArray()));
          g2 = (LookupPaintScale) in.readObject();
          in.close();
  
          assertEquals(g1, g2);
      }
  
      private static final double EPSILON = 0.0000000001;
  
      /**
       * Some checks for the default constructor.
       */
      @Test
      public void testConstructor1() {
          LookupPaintScale s = new LookupPaintScale();
          assertEquals(0.0, s.getLowerBound(), EPSILON);
          assertEquals(1.0, s.getUpperBound(), EPSILON);
      }
  
      /**
       * Some checks for the other constructor.
       */
      @Test
      public void testConstructor2() {
          LookupPaintScale s = new LookupPaintScale(1.0, 2.0, Color.RED);
          assertEquals(1.0, s.getLowerBound(), EPSILON);
          assertEquals(2.0, s.getUpperBound(), EPSILON);
          assertEquals(Color.RED, s.getDefaultPaint());
      }
  
      /**
       * Some general checks for the lookup table.
       */
      @Test
      public void testGeneral() {
  
          LookupPaintScale s = new LookupPaintScale(0.0, 100.0, Color.BLACK);
          assertEquals(Color.BLACK, s.getPaint(-1.0));
          assertEquals(Color.BLACK, s.getPaint(0.0));
          assertEquals(Color.BLACK, s.getPaint(50.0));
          assertEquals(Color.BLACK, s.getPaint(100.0));
          assertEquals(Color.BLACK, s.getPaint(101.0));
  
          s.add(50.0, Color.BLUE);
          assertEquals(Color.BLACK, s.getPaint(-1.0));
          assertEquals(Color.BLACK, s.getPaint(0.0));
          assertEquals(Color.BLUE, s.getPaint(50.0));
          assertEquals(Color.BLUE, s.getPaint(100.0));
          assertEquals(Color.BLACK, s.getPaint(101.0));
  
          s.add(50.0, Color.RED);
          assertEquals(Color.BLACK, s.getPaint(-1.0));
          assertEquals(Color.BLACK, s.getPaint(0.0));
          assertEquals(Color.RED, s.getPaint(50.0));
          assertEquals(Color.RED, s.getPaint(100.0));
          assertEquals(Color.BLACK, s.getPaint(101.0));
  
          s.add(25.0, Color.green);
          assertEquals(Color.BLACK, s.getPaint(-1.0));
          assertEquals(Color.BLACK, s.getPaint(0.0));
          assertEquals(Color.green, s.getPaint(25.0));
          assertEquals(Color.RED, s.getPaint(50.0));
          assertEquals(Color.RED, s.getPaint(100.0));
          assertEquals(Color.BLACK, s.getPaint(101.0));
  
          s.add(75.0, Color.yellow);
          assertEquals(Color.BLACK, s.getPaint(-1.0));
          assertEquals(Color.BLACK, s.getPaint(0.0));
          assertEquals(Color.green, s.getPaint(25.0));
          assertEquals(Color.RED, s.getPaint(50.0));
          assertEquals(Color.yellow, s.getPaint(75.0));
          assertEquals(Color.yellow, s.getPaint(100.0));
          assertEquals(Color.BLACK, s.getPaint(101.0));
      }
  
      /**
       * Some checks for special values in the getPaint() method.
       */
      @Test
      public void testSpecialValues() {
          LookupPaintScale s = new LookupPaintScale(0.0, 100.0, Color.black);
          s.add(25.0, Color.green);
          s.add(50.0, Color.blue);
          s.add(75.0, Color.yellow);
          assertEquals(Color.black, s.getPaint(Double.NaN));
          assertEquals(Color.black, s.getPaint(Double.POSITIVE_INFINITY));
          assertEquals(Color.black, s.getPaint(Double.NEGATIVE_INFINITY));
  
      }
  
  }
  